Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Impermeable brick for aluminum electrolysis cell
The invention belongs to the field of refractory materials, and relates to an anti-seepage brick for an aluminum electrolysis cell, which adopts pure fine powder as a raw material. The pure fine powder is aluminum silicate, and the aluminum silicate is composed of at least three of pyrophyllite, flint clay, clay, silica, albite and potassium feldspar; the novel impermeable brick is also added witha fine powder sintering aid, is uniformly mixed, is added with a binding agent for granulation, and is subjected to mechanical pressing and high-temperature sintering. The selected aluminum silicateraw materials are all fine powder, the prepared product is good in component consistency, uniform in structure, high in volume density, low in apparent porosity and uniform in reaction with permeatedelectrolyte, an impermeable layer can be rapidly formed, and the prepared impermeable brick can effectively improve and slow down erosion and permeation of the electrolyte of the aluminum electrolysiscell to the impermeable brick; therefore, the problem of over-short service life of the bottom of the electrolytic cell can be effectively solved.
本发明属于耐火材料领域，涉及一种铝电解槽用防渗砖，涉及的一种铝电解槽用防渗砖采用纯细粉作为原料；所述的纯细粉为硅酸铝，所述硅酸铝由叶蜡石、焦宝石、黏土、硅石、钠长石、钾长石中的至少三种组成；新型防渗砖还外加有细粉助烧剂，混合均匀，加入结合剂造粒，机压成型并高温烧成。本发明选取硅酸铝原料均为细粉，制备的产品成分一致性好，结构均匀，体积密度高，显气孔率低，与渗透的电解质反应均匀，能快速形成一层防渗层，所制备的防渗砖能有效改善和减缓铝电解槽电解质对防渗砖的侵蚀和渗透，从而能有效解决电解槽槽底寿命过低的问题。
Impermeable brick for aluminum electrolysis cell
The invention belongs to the field of refractory materials, and relates to an anti-seepage brick for an aluminum electrolysis cell, which adopts pure fine powder as a raw material. The pure fine powder is aluminum silicate, and the aluminum silicate is composed of at least three of pyrophyllite, flint clay, clay, silica, albite and potassium feldspar; the novel impermeable brick is also added witha fine powder sintering aid, is uniformly mixed, is added with a binding agent for granulation, and is subjected to mechanical pressing and high-temperature sintering. The selected aluminum silicateraw materials are all fine powder, the prepared product is good in component consistency, uniform in structure, high in volume density, low in apparent porosity and uniform in reaction with permeatedelectrolyte, an impermeable layer can be rapidly formed, and the prepared impermeable brick can effectively improve and slow down erosion and permeation of the electrolyte of the aluminum electrolysiscell to the impermeable brick; therefore, the problem of over-short service life of the bottom of the electrolytic cell can be effectively solved.
本发明属于耐火材料领域，涉及一种铝电解槽用防渗砖，涉及的一种铝电解槽用防渗砖采用纯细粉作为原料；所述的纯细粉为硅酸铝，所述硅酸铝由叶蜡石、焦宝石、黏土、硅石、钠长石、钾长石中的至少三种组成；新型防渗砖还外加有细粉助烧剂，混合均匀，加入结合剂造粒，机压成型并高温烧成。本发明选取硅酸铝原料均为细粉，制备的产品成分一致性好，结构均匀，体积密度高，显气孔率低，与渗透的电解质反应均匀，能快速形成一层防渗层，所制备的防渗砖能有效改善和减缓铝电解槽电解质对防渗砖的侵蚀和渗透，从而能有效解决电解槽槽底寿命过低的问题。
Impermeable brick for aluminum electrolysis cell
一种铝电解槽用防渗砖
WANG LAIWEN (Autor:in) / YU JIANBIN (Autor:in) / MA WEIKUI (Autor:in) / WANG GANG (Autor:in) / ZHANG YI (Autor:in) / WANG WENWU (Autor:in) / ZHANG HAIXIA (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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